Senior admin official claims US offered 'free nuclear fuel forever' but was rebuffed by Iran, which wanted to preserve enrichment ability 'for nuclear bomb'; US official denies being dragged by Israel into war

Iranian state TV announces 40 days of mourning for supreme leader, also says Guards chief and top aide Shamkhani killed * IDF conducts several overnight sets of strikes on Iran's missiles, air defenses * Sirens sound throughout Israel

Iranians brave the streets to celebrate; US president urges regime's security personnel to surrender as PM Netanyahu calls on Iran's public to rise up and topple the Islamic regime

The 86-year-old supreme leader placed the IRGC at the center of power, and built up a terror network. With so many top aides dead, it is hard to determine who will take his place

Surprisingly picked to lead Islamic Republic, supreme leader championed uranium enrichment during 36-year rule, built an army of terror proxies, and refused compromise to the bitter end